PXE protocol details
By Andrei Ungureanu - Last updated: Saturday, April 23, 2022 - Save & Share - Leave a Comment
Just did a quick PXE troubleshooting this week and I thought to share some good PXE document that explains the logic built into the protocol:
http://www.pix.net/software/pxeboot/archive/pxespec.pdf
It’s really old stuff, but it still helps to get an insight into the protocol. Also some stuff from Broadcom was also very helpful:
https://knowledge.broadcom.com/external/article/181525/using-a-wireshark-network-trace-to-troub.html
PS: Be careful with options 66/67 in DHCP; those are legacy and some vendors are ignoring it